32
BA214F/24/ae/12.05 52005009 Operating Instructions Liquiphant M FTL50H, FTL51H Level Limit Switch

393414 Endress Hauser Ftl50h Ate2ad2e6a Liquiphant Instructions

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Page 1: 393414 Endress Hauser Ftl50h Ate2ad2e6a Liquiphant Instructions

BA214F/24/ae/12.05

52005009

Operating Instructions

Liquiphant M FTL50H, FTL51H

Level Limit Switch

Page 2: 393414 Endress Hauser Ftl50h Ate2ad2e6a Liquiphant Instructions

Operating Instructions Liquiphant M FTL50H / FTL51H

2 Endress+Hauser

Table of Contents

Safety Instructions

Order Codes

Installation

Setup

Maintenance & Cleaning

Technical Data

Troubleshooting

Spare Parts

Supplemental documentation

Page 3: 393414 Endress Hauser Ftl50h Ate2ad2e6a Liquiphant Instructions

Liquiphant M FTL50H / FTL51H Operating Instructions

Endress+Hauser 3

1 Safety Instructions

Safe and secure operation of the unit can only be guaranteed if the operating instructions and all

safety notes are read, understood and followed.

1.1 Approved usage

The Liquiphant M FTL50H and FTL51H is designed for level limit detection in liquids. If used incor-

rectly, it is possible that application-related dangers may arise. The level limit switch Liquiphant M

FTL50H and FTL51H may be installed, connected, commissioned, operated and maintained by

qualified and authorized personnel only, under strict observance of these operating instruc-

tions, any relevant standards, legal requirements, and, where appropriate, the certificate.

1.2 Safety pictograms and symbols

Safe and reliable operation of this unit can only be guaranteed if the safety hints and warnings in

these operating instructions are followed. The safety hints in these instructions are highlighted using

the following symbols:

" Caution!

This symbol indicates activities and actions that, if followed incorrectly, could lead to faulty opera-

tion or even damage to the unit.

! Note!

This symbol indicates activities and actions that, if followed incorrectly, could have an indirect influ-

ence on the unit operation or could lead to an unforeseen unit reaction.

# Warning!

This symbol indicates activities and actions that, if followed incorrectly, could lead to personal

injury, a safety hazard, or destruction of the instrument.

0- Hazardous area, certified equipment!

If this character is shown on the unit, then it may be operated in hazardous areas.

. Non-hazardous area!

This symbol identifies the non-hazardous areas in these instructions. Units that operate in the non-

hazardous areas but that are connected to the hazardous areas must also be certified.

# Warning!(For Intrinsically Safe Units)

Installation shall be in accordance with the National Electrical Code (ANSI/NFPA 70) and

ANSI/ISA RP 12.6, "Wiring Practices for Hazardous (Classified) Locations, Instrumentation Part I:

Intrinsic Safety".

Liquiphant M has been tested for pharmaceutical, food and dairy processing, earning EHEDG cer-

tificates, and meeting 3-A Sanitary Standards.

Page 4: 393414 Endress Hauser Ftl50h Ate2ad2e6a Liquiphant Instructions

Operating Instructions Liquiphant M FTL50H / FTL51H

4 Endress+Hauser

1.3 Handling

Hold by housing, flange or

extension tube

Do not bend.

Do not shorten.

Do not lengthen

2 Order Codes

Product structure

kA

143Y

02ae

.eps

KA

143Y

03ae

.eps

Design Basic weight

FTL50H Compact 1.5 lb 0.7 kg

FTL51H With extension pipe 1.5 lb 0.7 kg

10 Approval

A Non-hazardous area

P FM IS, Class I, II, III Division 1, Group A-G

Q FM XP, Class I, II, III Division 1, Group B-G, for E5 housing Group A-G

R FM NI, Class I Division 2, Group A-D

S CSA IS, Class I, II, III Division 1, Group A-G

T CSA XP, Class I, II, III Division 1, Group A-G

U CSA General Purpose

Y Special version

ATEX and TIIS certified units available

on request

20 Process connection, material Additional weight

EE2 1" flush-mounted (52001047) 316L 0.7 lb 0.3 kg

A82 1" 150 lb RF Flange ANSI B16.5 316/316L 2.2 lb 1.0 kg

AA2 1-¼" 150 lb RF Flange ANSI B16.5 316/316L 2.6 lb 1.2 kg

AC2 1-½" 150 lb RF Flange ANSI B16.5 316/316L 3.3 lb 1.5 kg

AE2 2" 150 lb RF Flange ANSI B16.5 316/316L 5.3 lb 2.4 kg

AF2 2" 300 lb RF Flange ANSI B16.5 316/316L 7.1 lb 3.2 kg

AJ2 2-½" 300 lb RF Flange ANSI B16.5 316/316L (FTL51H) 10.6 lb 4.8 kg

Page 5: 393414 Endress Hauser Ftl50h Ate2ad2e6a Liquiphant Instructions

Liquiphant M FTL50H / FTL51H Operating Instructions

Endress+Hauser 5

AL2 3" 150 lb RF Flange ANSI B16.5 316/316L 10.8 lb 4.9 kg

AM2 3" 300 lb RF Flange ANSI B16.5 316/316L (FTL51H) 15 lb 6.8 kg

AP2 4" 150 lb RF Flange ANSI B16.5 316/316L 15.4 lb 7.0 kg

AQ2 4" 300 lb RF Flange ANSI B16.5 316/316L (FTL51H) 25.3 lb 11.5 kg

TC2 DN 25-38 (1 to 1-½") ISO 2852 Tri-Clamp 316L

TE2 DN 40-51 (2") ISO 2852 Tri-Clamp 316L 0.2 lb 0.1 kg

WE2 DN65-

162

PN10 Varivent N 316L 1.1 lb 0.5 kg

YY9 Special version

Other process connections available, contact Endress+Hauser

30 Probe Length; Type

FTL50H

AC Compact Ra <1.5 μm/120 grit

AD Compact Ra <0.3 μm/320 grit

IC Compact Ra <1.5 μm/120 grit + temperature spacer 1.3 lb 0.6 kg

ID Compact Ra <0.3 μm/320 grit/A3 + temperature spacer 1.3 lb 0.6 kg

QC Compact Ra <1.5 μm/120 grit + pressure tight feed through 1.5 lb 0.7 kg

QD Compact Ra <0.3 μm/320 grit/A3 + pressure tight feed

through

1.5 lb 0.7 kg

FTL51H

CC ....... inch Ra <1.5 μm/120 grit 5 lb/100 inches

CD ....... inch Ra <0.3 μm/320 grit / A3 5 lb/100 inches

DC Length type II* Ra <1.5 μm/120 grit 0.2 lb 0.1 kg

DD Length type II* Ra <0.3 μm/320 grit / A3 0.2 lb 0.1 kg

KC ....... inch Ra <1.5 μm/120 grit + temperature spacer 5 lb/100 in +1.3 lb

KD ....... inch Ra <0.3 μm/320 grit/A3 + temperature spacer 5 lb/100 in +1.3 lb

LC Length type II* Ra <1.5 μm/120 grit + temperature spacer 0.2 lb+1.3 lb

0.1 kg

+0.6 kg

LD Length type II* Ra <0.3 μm/320 grit + temperature spacer 0.2 lb+1.3 lb

0.1 kg

+0.6 kg

SC ....... inch Ra <1.5 μm/120 grit + pressure tight feed through 5 lb/100 in + 1.5 lb

SD ....... inch Ra <0.3 μm/320 grit/A3 + pressure tight feed

through

5 bl/100 in +1.5 lb

TC Length type II* Ra <1.5 μm/120 grit + pressure tight feed through 0.2 lb+1.5 lb

0.1 kg

+0.7 kg

YY Special version

*) Replacing instruments: when vertically mounting a Liquiphant M

FTL51H with length II, the switch point is at the same height as for the

Liquiphant II FTL360, FTL365, FDL30, FDL35

40 Electronic insert

1 FEL51* Contact-free two-wire, 19 to 253 V AC

2 FEL52* PNP three-wire, 10 to 55 V DC

4 FEL54 Floating change-over contacts, DPDT, 19 to 253 V AC, 19 to 55 V DC

5 FEL55 8/16 mA, 11 to 36 V DC

6 FEL56 NAMUR

7 FEL57 Two-wire PFM

8 FEL58* NAMUR with push button (disconnects wire)

9 Special version

*) Also available in compact housing

50 Housing, cable entry

C3 Compact housing 316L IP66/68 16 ft. cable

D3 Compact housing 316L IP65 Pg11 connector

E3 Compact housing 316L NEMA4X NPT ½" connector

N3 Compact housing 316L IP66/68 M12 connector

E4 Polyester housing Nema 4x, NPT ½"

E5 F13/F17 Aluminum housing Nema 4X, NPT ¾" 0.9 lb/0.4 kg

E6 F15 316L housing Nema 4X, NPT ½"

E7 T13 Aluminum housing IP66 NPT ¾",

with separate connection compartment

1.8 lb/0.8 kg

Y9 Special version

60 Additional option

A Basic version

20 Process connection, material Additional weight

Page 6: 393414 Endress Hauser Ftl50h Ate2ad2e6a Liquiphant Instructions

Operating Instructions Liquiphant M FTL50H / FTL51H

6 Endress+Hauser

B CoC, EN 10204 - 3.1 material (316L wetted parts)

Inspection certificate

C EN10204 - 3.1 material (316L wetted parts)

Inspection certificate

S GL/ABS marine certificate (FTL51H: max. 63 inches/1600 mm)

Y Special version

FTL 5#H - Complete product designation

60 Additional option

Page 7: 393414 Endress Hauser Ftl50h Ate2ad2e6a Liquiphant Instructions

Liquiphant M FTL50H / FTL51H Operating Instructions

Endress+Hauser 7

3 Installation

3.1 Application

Level limit detection in

liquids

3.2 Measuring System

For direct connection

KA

143Y

10ae

.eps

"T"

KA

144y0

9r

0801.e

ps

Page 8: 393414 Endress Hauser Ftl50h Ate2ad2e6a Liquiphant Instructions

Operating Instructions Liquiphant M FTL50H / FTL51H

8 Endress+Hauser

For connection via

switching unit

3.3 Installation

Switchpoint depends on

mounting position

! Note!

The switchpoints of the Liquiphant M are at different positions than those of the previous version

Liquiphant II.

KA

144Y

99

R 0

801.e

ps

…EX EX

I.S.

*)FTL…,SIF…, SIN…,FXN…

*) Switching unit, PLC,isolating amplifier

KA

143Y

13ae

.eps

KA

14

3Y

15ae

.eps

Page 9: 393414 Endress Hauser Ftl50h Ate2ad2e6a Liquiphant Instructions

Liquiphant M FTL50H / FTL51H Operating Instructions

Endress+Hauser 9

Mounting examples as a

function of liquid viscosity

Consider buildup.

Fork may not contact the

buildup

min. 1 inmin. 25 mm( )

min. 2.2 in(min. 55 mm)

min. 2"(min. DN 50)

* *

� = 0 - 10,000 cP

� = 0 - 2000 cP

*Deburr

KA

144Y

16ae

.eps

**

*Distance

KA

143Y

17ae

.eps

Page 10: 393414 Endress Hauser Ftl50h Ate2ad2e6a Liquiphant Instructions

Operating Instructions Liquiphant M FTL50H / FTL51H

10 Endress+Hauser

In cases of dynamic forces

support

Allow clearance

KA

143

Y18ae

.eps

.. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. ....

....

....

....

....

....

....

....

....

....

.. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. ....

....

....

....

....

....

....

....

....

....

.. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. ....

....

....

....

....

....

....

....

....

....

.. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. .. ...

....

....

....

....

....

....

....

....

....

"T"

"T" = with temperature spacer for insulated tanks

KA

143Y

19ae

.eps

Page 11: 393414 Endress Hauser Ftl50h Ate2ad2e6a Liquiphant Instructions

Liquiphant M FTL50H / FTL51H Operating Instructions

Endress+Hauser 11

Orientation of fork tines:

marking above or below

Screw Liquiphant into

process connection.

DON’T use housing to turn.

KA

144Y

20ae

.eps,

KA

143Y

21ae

.eps

41

SW 1¼",

1 ",

G ¾, 32 mm

SW G 1, 41 mm5

8

in welding-neck

*

KA

144Y

22ae

.eps

Page 12: 393414 Endress Hauser Ftl50h Ate2ad2e6a Liquiphant Instructions

Operating Instructions Liquiphant M FTL50H / FTL51H

12 Endress+Hauser

Orientation in pipes:

marking in direction of

flow

Cable entry orientation*Torque

Ø(ø )

min. 2"min. 50 mm

Max. 16 ft/s

5 m/s(max. )

KA

143

Y23ae

.eps

12

3 to 4turns

*0.9 Nm

1 21 2

... 270°

... 300°

1. 2. 3.

F16, F13, F17

F15

KA

143Y

24ae

.eps

Page 13: 393414 Endress Hauser Ftl50h Ate2ad2e6a Liquiphant Instructions

Liquiphant M FTL50H / FTL51H Operating Instructions

Endress+Hauser 13

4 Setup

Minimum/maximum fail-

safe mode

Liquid density.

Density ρ measured in

g/cm3 (SGU) or in kg/l

0 V

Max.

Max.

Min.Min.

KA

143Y

25ae

.eps

lbs5.9

1US gal

lbs4.2

1US gal

1 US. gal = min. 5.9 lbs(1 l (1 dm³) = min 0.7 kg)(1 imp.gal = min. 7.0 lbs)

0 V

> 0.7 ( 5.9 lbs.)�

FEL , FEL , FEL , FEL , FEL , FEL , FEL51 52 54 55 56 57 58

> 0.5

( 4.2 - 5.9 lbs.)�

1 US. gal = 4.2 - 5.9 lbs

1 l ( 1 dm³) = 0.5 - 0.7 kg(1 imp.gal = 5.0 - 0.7 lbs)( )

Standard

e.g. Propane

KA

143Y

26ae

.eps

Page 14: 393414 Endress Hauser Ftl50h Ate2ad2e6a Liquiphant Instructions

Operating Instructions Liquiphant M FTL50H / FTL51H

14 Endress+Hauser

Self test FEL57 (See page 21 and

switching unit for

sequence)

4.1 Display elements

FEL 57

STD

~ 8 s

~ 41 s

EXT

+–

Switching unit

With corrosion test

Standard

KA

143Y

27ae

.eps

KA

143Y

38ae

.eps

Page 15: 393414 Endress Hauser Ftl50h Ate2ad2e6a Liquiphant Instructions

Liquiphant M FTL50H / FTL51H Operating Instructions

Endress+Hauser 15

4.2 Connections, Function

Connections FEL51

Two-wire AC connection

Max. AWG 14

1/8 in3 mm( )

(Max. )2,5 mm²

Max. AWG 12

(Max. )4 mm²

FEL…

Note national regulations!

KA

14

3Y

29ae

.eps

KA

143Y

30ae

.eps

Page 16: 393414 Endress Hauser Ftl50h Ate2ad2e6a Liquiphant Instructions

Operating Instructions Liquiphant M FTL50H / FTL51H

16 Endress+Hauser

Function FEL51

ΔVFEL51 max. 12V

Connections FEL52

DC connection (PNP) also for DI modules

KA

143Y

39ae

.eps

KA

143Y

31ae

.eps

Page 17: 393414 Endress Hauser Ftl50h Ate2ad2e6a Liquiphant Instructions

Liquiphant M FTL50H / FTL51H Operating Instructions

Endress+Hauser 17

Function FEL52

ΔVFEL52 max. 3V

Connections FEL54

Universal connection

Relay output

KA

143Y

40

ae.e

ps

KA

143Y

32ae

.eps

Page 18: 393414 Endress Hauser Ftl50h Ate2ad2e6a Liquiphant Instructions

Operating Instructions Liquiphant M FTL50H / FTL51H

18 Endress+Hauser

Function FEL54

Connections FEL55

Output

8/16 mA

Max.

Min.

GN RD

3 54

3 54

6 87

6 87

3 54

3

3

3

5

5

5

4

4

4

6 87

6

6

6

8

8

8

7

7

7

FEL 54

FEL 54

1 2 6 7 83 4 5

V 0 V12

KA

143Y

41ae

.eps

R

IS

11 - 36 VDC

R =max. 11 V16.8 mA

+–

1 2

EX

EX

FEL 55

e.g. PLC, AI modules

Hazardous Area

Non-HazardousArea

FM

KA

14

3Y

33ae

.eps

Page 19: 393414 Endress Hauser Ftl50h Ate2ad2e6a Liquiphant Instructions

Liquiphant M FTL50H / FTL51H Operating Instructions

Endress+Hauser 19

Function FEL55

Connections FEL56

NAMUR output L-H

<1.0 mA / >2.2 mA

Max.

Min.

GN RD FEL 55

~ 8 mA1

~ 16 mA1

~ 16 mA1

~ 8 mA1

FEL 55

1 2

< 3.6 mA1

+ 2

+ 2

+ 2

+ 2

+ 2

KA

143Y

42.e

ps

H

L

IH2.2 - 2.8 mA

0.6 - 1.0 mAL

+–

IS

1 2

EX

EX

FEL 56

e.g. FXN 421, FXN 422, SIN 100, SIN 110FTL 325N, FTL 375N

Multiplexer: pulse cycle minimum 2 sduty

HazardousArea

Non-HazardousArea

FM

Isolating amplifier toNAMUR (IEC 60947-5-6)

KA

143Y

34ae

.eps

Page 20: 393414 Endress Hauser Ftl50h Ate2ad2e6a Liquiphant Instructions

Operating Instructions Liquiphant M FTL50H / FTL51H

20 Endress+Hauser

Function FEL56

Connections FEL57

PFM output

150 Hz/50 Hz

0.6…1.0 mA

0.6…1.0 mA

2.2…2.8 mA

2.2…2.8 mA

2.2…2.8 mA

Max.

Min.

FEL 56GN RD

FEL 56

1 2

1

1

1

1

1

+ 2

+ 2

+ 2

+ 2

+ 2

KA

143Y

43ae

.eps

IS

+–

1 2

EX

EX

7 833 3437 38

NivotesterFTL 320, FTL 120ZFTL 325 P CH1FTL 325 P CH3

FTL 370/372, FTL 170ZFTL 375 P CH1Input 1

FTL 372, FTL 170ZFTL 375 P CH2Input 2

FTL 375 P CH3Input 3

Commutec SSIF 101, SIF 111

d4 d2

z4 z2

z6 d6

2 1

FEL 57

H H 150 Hz

50 HzL L

f

Note function!

HazardousArea

Non-HazardousArea

See page 21

FM

KA

14

3Y

35ae

.eps

Page 21: 393414 Endress Hauser Ftl50h Ate2ad2e6a Liquiphant Instructions

Liquiphant M FTL50H / FTL51H Operating Instructions

Endress+Hauser 21

Function FEL57

Switch-on behavior STD

(Self test)

0 Hz

0 Hz

150 HzI

t

I

tI

t

I

t

50 Hz

FEL 57GN YE

V 0 V12

FEL 57

*

*Switch-on behavior

See page 21

KA

143Y

44ae

.eps

0 Hz 50 Hz 50 Hz

0 Hz 150 Hz 50 Hz 150 Hz

1 s 7 s

1 s 4 s 3 s

FEL 57

FEL 57

FEL 57

STD

Simulation

Simulation

+

KA

144

Y45ae

.eps

Page 22: 393414 Endress Hauser Ftl50h Ate2ad2e6a Liquiphant Instructions

Operating Instructions Liquiphant M FTL50H / FTL51H

22 Endress+Hauser

Switch-on behavior EXT

(Self test)

Connections FEL58

NAMUR output H-L

>2.2 mA / <1.0 mA

0 Hz 150 Hz 50 Hz 0 Hz 150 Hz

0 Hz 50 Hz 0 Hz 50 Hz

1 s 4 s 30 s 6 s

1 s 34 s 6 s

FEL57

FEL57

Simulation

Simulation

+

FEL57

EXT

KA

144

Y47ae

.eps

H

L

IH2.2 - 3.5 mA

0.6 - 1.0 mAL

+–

IS

1 2

EX

EX

FEL 58

e.g. FXN 421, FXN 422, SIN 100, SIN 110FTL 325 N, FTL 375 N

Multiplexer: pulse cycle minimum 2 sduty

HazardousArea

Non-HazardousArea

FM

Isolating amplifier toNAMUR (IEC 60947-5-6)

KA

143Y

36ae

.eps

Page 23: 393414 Endress Hauser Ftl50h Ate2ad2e6a Liquiphant Instructions

Liquiphant M FTL50H / FTL51H Operating Instructions

Endress+Hauser 23

Function FEL58

Function test button FEL58

Fail-safe mode MAX

2.2…3.5 mA

2.2…3.5 mA

0.6…1.0 mA

0.6…1.0 mA

< 1.0 mA0.3 Hz

1 Hz

1 Hz

1 Hz

1 Hz

Max.

Min.

FEL 58GN YE

FEL 58

1 2

1

1

1

1

1

+ 2

+ 2

+ 2

+ 2

+ 2

KA

143

Y49ae

.eps

* T

T

Ex dEx d

GNGN YEYE

GN

1 Hz

YE

GN

1 Hz

YE

2.2…

3.5 mA

1

+

2

GN

1 Hz

YE

0.6…

1.0 mA1

+

2

1

+

2 1

+

2

1

+

2

0 mA 0 mA

0.6…

1.0 mA

GN

1 Hz

YE

1

+

2

2.2…

3.5 mA

Normal operation1.

2.

3.

Press test button

Release the test button,

after ~2 s normal operation

>3 s

MAX

KA

144Y

60ae

.eps

Page 24: 393414 Endress Hauser Ftl50h Ate2ad2e6a Liquiphant Instructions

Operating Instructions Liquiphant M FTL50H / FTL51H

24 Endress+Hauser

Function test button FEL58

Fail-safe mode MIN

* T

T

Ex dEx d

GNGN YEYE

GN

1 Hz

YE

GN

1 Hz

YE

2.2…

3.5 mA

1

+

2

GN

1 Hz

YE

0.6…

1.0 mA1

+

2

1

+

2 1

+

2

1

+

2

0 mA 0 mA

0.6…

1.0 mA

GN

1 Hz

YE

1

+

2

2.2…

3.5 mA

Normal operation1.

2.

3.

Press test button

Release the test button,

after ~2 s normal operation

>3 s

MIN

KA

143Y

65ae

.eps

Page 25: 393414 Endress Hauser Ftl50h Ate2ad2e6a Liquiphant Instructions

Liquiphant M FTL50H / FTL51H Operating Instructions

Endress+Hauser 25

5 Maintenance & Cleaning

Removal of encrustation

CIP, SIP

max. 300 °F

(max. 150 °C)

Don't use as a step!

KA

14

4Y

53ae

.eps

Page 26: 393414 Endress Hauser Ftl50h Ate2ad2e6a Liquiphant Instructions

Operating Instructions Liquiphant M FTL50H / FTL51H

26 Endress+Hauser

6 Technical Data

Ambient temperature Ta

Process temperature Tp

6.1 Accessories

Weld-in sockets max. 360 psi/300°F

(max. 25 bar/150°C)

max. 580 psi/210°F

(max. 40 bar/100°C)

* pe

* Tp

Process pressure See:

p = max. 930 psie

(64 bar) *

Process connection / accessories

T

( )158 °F70 °C

32 °F

( )122 °F50 °C

T

T

T

–58 °F(–50 °C)

Available whenused with temperaturespacer.See order codes.

aa

p

P

°F

°F

*

*–58(–5 ) ( ) ( ) ( )

°F 32 °F 194 °F 300 °F0 °C 0 °C 90 °C 150 °C

KA

144

Y54ae

.eps

1.02 (26)

0.97(24.6)

1.02(26)

0.20 (5)

1.16 (29.6)

G ¾

E+H 52001052

G 1

E+H 52001051

G 1

E+H 52001221

Ø 2.5( 65Ø )

Ø 2.36( 60Ø )G1

ISO 228Ø1.61(ø41)

Ø 2.16(Ø55 )G ¾

ISO 228Ø1.26(ø32)

0.83(21)

Dimensions are in inches (mm)

-0.02

-0.4

-0.4

-0.3

-0.02

-0.01

KA

144Y

55ae

.eps

Page 27: 393414 Endress Hauser Ftl50h Ate2ad2e6a Liquiphant Instructions

Liquiphant M FTL50H / FTL51H Operating Instructions

Endress+Hauser 27

Weld-in socket; Covers

with window

7 Troubleshooting

Fault Reason Remedy

Does not switch No power Check power

Faulty signal line Check signal line

Faulty electronic insert

– FEL51 connected directly to L1 and N

Exchange

– always connect FEL51 via external load

Density of liquid too low Set density to >0.5 at electronic insert

Fork encrusted Clean fork

Fork corroded

(Indication on FEL: red/yellow flashes,

FEL58: green flashes (0.3 Hz)

Exchange fork and process connection

FEL51: Internal resistance of connected

relay too large

Connect suitable relay

FEL51: Holding current of connected

relay too low

Connected resistor in parallel with relay

FEL54: Contacts welded together (after

short-circuit)

Exchange FEL54; put fuse in contact circuit

Switches incorrectly Min-/Max- fail-safe mode set wrong Set correct mode at electronic insert

1"

52001047

FTL5#H - #EE2……

AISI 316L

(1.4435)

max. 580 psi / 210 °F

(max. 40 bar / 100 °C)

max. 360 psi / 300 °F

(max. 25 bar / 150 °C)

PA 12

AISI 316L

(1.4435)

PC

AISI 316L

(1.4435)

glass

for PBT housing

943461-0001

for steel housing

943301-1000

for steel housing

52001403

0.18”

(4.5)

~1.02”

(26)

RD 52 x 1/6

ø1.67”

(42.3)

ø2.56”

(65)

KA

144Y

56ae

.eps

Page 28: 393414 Endress Hauser Ftl50h Ate2ad2e6a Liquiphant Instructions

Operating Instructions Liquiphant M FTL50H / FTL51H

28 Endress+Hauser

Troubleshooting

Supplement

If the switching behavior of the fork is abnormal, the fork frequency can be measured at PIN 4 of

the diagnosis socket. With electronic inserts FEL 51/52/54/55/56/57/58, this is a sinusoidal

vibration whose amplitude makes it possible to determine the condition of the fork.

8 Spare Parts

Electronic inserts Installation specification:

During installation, please keep in mind that

electrical resources (electronic inserts) which

are powered by non-intrinsically-safe circuits

may no longer be interconnected with intri-

niscally-safe circuits.

Housing covers, seals

Sporadic faulty

switching

Thick heavy foam, very turbulent

conditions, foaming liquid

Mount Liquiphant in bypass

Extreme RFI Use shielded cable

Extreme vibration Decouple, damp, turn fork 90°

Water in housing Screw cover and cable gland tight

FEL52: Output overloaded Reduce load, (cable) capacitance

Switches incorrectly

after power failure

FEL57: behavior during switch-on test

(functional test)

Observe switching behavior of FEL57; after

power failure block plant control for up to 45 s

Fault Reason Remedy

KA

14

4Y

57ae

.eps

FEL51 52002304

FEL52 52002305

FEL54 52002306

FEL55 52002307

FEL56 52002308

FEL57 52002309

FEL58 52006454

*

*

*

* KA

144Y

58ae

.eps

Lubricate with silicone grease or graphite.

Alu

EPDM

Alu w/EPDM O-ring E+H 52002699

Alu (EX) w/EPDM O-ring E+H 52002698

PBT-FR (cover only) E+H 943461-0000

EPDM O-ring E+H 017717-0003

AISI 304/316L E+H 943301-0000

(cover only)

(1.4301/1.4435)

MVQ Silicone Seal E+H 943304-0000

Page 29: 393414 Endress Hauser Ftl50h Ate2ad2e6a Liquiphant Instructions

Liquiphant M FTL50H / FTL51H Operating Instructions

Endress+Hauser 29

9 Repair

Repair is done at

Endress+Hauser

1.

2.

3.

Endress+Hauser

Clean

Transportprotection

KA

144Y

59ae

.eps

Page 30: 393414 Endress Hauser Ftl50h Ate2ad2e6a Liquiphant Instructions

Operating Instructions Liquiphant M FTL50H / FTL51H

30 Endress+Hauser

10 Supplemental Documentation

Technical Information

TI328F Liquiphant FTL50, FTL50H, FTL51, FTL51H

Notes on Safety

XA031F 4 0 II 1/2 G EEx d IIC/IIB

XA063F 4 0 II 1/2 G, II 1/2 D EEx ia/ib IIC/IIB

XA064F 4 0 II 1 G EEx ia IIC/IIB

XA154F 4 0 II 1/2 G, II 1/2 D EEx ia/ib IIC/IIB

XA159F 4 0 II 1 G EEx ia IIC/IIB

Page 31: 393414 Endress Hauser Ftl50h Ate2ad2e6a Liquiphant Instructions

Liquiphant M FTL50H / FTL51H Operating Instructions

Endress+Hauser 31

Page 32: 393414 Endress Hauser Ftl50h Ate2ad2e6a Liquiphant Instructions

United States Canada Mexico

Endress+Hauser, Inc.2350 Endress PlaceGreenwood, IN 46143Tel: 317-535-7138Sales: 888-ENDRESSService: 800-642-8737FAX: [email protected]

Endress+Hauser Canada1075 Sutton DriveBurlington, ON L7L 5Z8Tel: 905-681-9292800-668-3199FAX: 905-681-9444www.ca.endress.com

Endress+Hauser (Mexico) S.A. de C.V.Calle de Gustavo Baz No. 43Fraccionamiento Bosques de EchegarayCP 53310 Naucalpan de JuárezMexicoTel: +52 55 5371 1110FAX: +52 55 5371 1128

BA214F/24/ae/12.05

52005009

FM+SGML

Endress+Hauser Mexico, S.A. de C.V.Av. Gustavo Baz No. 43Fracc. Bosques de EchegarayNaucalpan de Juaraz, C.P. 53310Estada de MexicoMexicoPhone: (52)-55-5371-1110FAX: (52)-55-5371-1128E-mail: [email protected]